tcp: minimal set of worker stats

Type: feature

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: I9dafe564229095d50285276a654f4983f93faff2

1 files changed, 84 insertions, 6 deletions

diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index ec24082347f..f83f00aa695 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -368,6 +368,7 @@ tcp_connection_close (tcp_connection_t * tc)
 	  tcp_connection_set_state (tc, TCP_STATE_CLOSED);
 	  tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.closewait_time);
 	  session_transport_closed_notify (&tc->connection);
+	  tcp_worker_stats_inc (tc->c_thread_index, rst_unread, 1);
 	  break;
 	}
       if (!transport_max_tx_dequeue (&tc->connection))
@@ -1376,6 +1377,7 @@ tcp_timer_waitclose_handler (u32 conn_index, u32 thread_index)
 
       if (!(tc->flags & TCP_CONN_FINPNDG))
 	{
+	  clib_warning ("close-wait with fin sent");
 	  tcp_connection_set_state (tc, TCP_STATE_CLOSED);
 	  tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
 	  break;
@@ -1391,6 +1393,7 @@ tcp_timer_waitclose_handler (u32 conn_index, u32 thread_index)
 
       /* Make sure we don't wait in LAST ACK forever */
       tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.lastack_time);
+      tcp_worker_stats_inc (thread_index, to_closewait, 1);
 
       /* Don't delete the connection yet */
       break;
@@ -1412,13 +1415,21 @@ tcp_timer_waitclose_handler (u32 conn_index, u32 thread_index)
 	  tcp_connection_set_state (tc, TCP_STATE_CLOSED);
 	  tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
 	}
+      tcp_worker_stats_inc (thread_index, to_finwait1, 1);
       break;
     case TCP_STATE_LAST_ACK:
+      tcp_connection_timers_reset (tc);
+      tcp_connection_set_state (tc, TCP_STATE_CLOSED);
+      tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
+      session_transport_closed_notify (&tc->connection);
+      tcp_worker_stats_inc (thread_index, to_lastack, 1);
+      break;
     case TCP_STATE_CLOSING:
       tcp_connection_timers_reset (tc);
       tcp_connection_set_state (tc, TCP_STATE_CLOSED);
       tcp_timer_set (tc, TCP_TIMER_WAITCLOSE, tcp_cfg.cleanup_time);
       session_transport_closed_notify (&tc->connection);
+      tcp_worker_stats_inc (thread_index, to_closing, 1);
       break;
     default:
       tcp_connection_del (tc);
@@ -1441,15 +1452,18 @@ static void
 tcp_expired_timers_dispatch (u32 * expired_timers)
 {
   u32 thread_index = vlib_get_thread_index ();
-  u32 connection_index, timer_id;
+  u32 connection_index, timer_id, n_expired;
   tcp_connection_t *tc;
   int i;
 
+  n_expired = vec_len (expired_timers);
+  tcp_worker_stats_inc (thread_index, timer_expirations, n_expired);
+
   /*
    * Invalidate all timer handles before dispatching. This avoids dangling
    * index references to timer wheel pool entries that have been freed.
    */
-  for (i = 0; i < vec_len (expired_timers); i++)
+  for (i = 0; i < n_expired; i++)
     {
       connection_index = expired_timers[i] & 0x0FFFFFFF;
       timer_id = expired_timers[i] >> 28;
@@ -1467,7 +1481,7 @@ tcp_expired_timers_dispatch (u32 * expired_timers)
   /*
    * Dispatch expired timers
    */
-  for (i = 0; i < vec_len (expired_timers); i++)
+  for (i = 0; i < n_expired; i++)
     {
       connection_index = expired_timers[i] & 0x0FFFFFFF;
       timer_id = expired_timers[i] >> 28;
@@ -1964,8 +1978,8 @@ tcp_configure_v6_source_address_range (vlib_main_t * vm,
 }
 
 static clib_error_t *
-tcp_src_address (vlib_main_t * vm,
-		 unformat_input_t * input, vlib_cli_command_t * cmd_arg)
+tcp_src_address_fn (vlib_main_t * vm,
+		    unformat_input_t * input, vlib_cli_command_t * cmd_arg)
 {
   ip4_address_t v4start, v4end;
   ip6_address_t v6start, v6end;
@@ -2047,7 +2061,7 @@ VLIB_CLI_COMMAND (tcp_src_address_command, static) =
 {
   .path = "tcp src-address",
   .short_help = "tcp src-address <ip-addr> [- <ip-addr>] add src address range",
-  .function = tcp_src_address,
+  .function = tcp_src_address_fn,
 };
 /* *INDENT-ON* */
 
@@ -2261,6 +2275,70 @@ VLIB_CLI_COMMAND (show_tcp_punt_command, static) =
 };
 /* *INDENT-ON* */
 
+static clib_error_t *
+show_tcp_stats_fn (vlib_main_t * vm, unformat_input_t * input,
+		   vlib_cli_command_t * cmd)
+{
+  tcp_main_t *tm = vnet_get_tcp_main ();
+  tcp_worker_ctx_t *wrk;
+  u32 thread;
+
+  if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    return clib_error_return (0, "unknown input `%U'", format_unformat_error,
+			      input);
+  for (thread = 0; thread < vec_len (tm->wrk_ctx); thread++)
+    {
+      wrk = tcp_get_worker (thread);
+      vlib_cli_output (vm, "Thread %d:\n", thread);
+
+#define _(name,type,str)					\
+  if (wrk->stats.name)						\
+    vlib_cli_output (vm, " %ld %s", wrk->stats.name, str);
+      foreach_tcp_wrk_stat
+#undef _
+    }
+  return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (show_tcp_stats_command, static) =
+{
+  .path = "show tcp stats",
+  .short_help = "show tcp stats",
+  .function = show_tcp_stats_fn,
+};
+/* *INDENT-ON* */
+
+static clib_error_t *
+clear_tcp_stats_fn (vlib_main_t * vm, unformat_input_t * input,
+		    vlib_cli_command_t * cmd)
+{
+  tcp_main_t *tm = vnet_get_tcp_main ();
+  tcp_worker_ctx_t *wrk;
+  u32 thread;
+
+  if (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+    return clib_error_return (0, "unknown input `%U'", format_unformat_error,
+			      input);
+
+  for (thread = 0; thread < vec_len (tm->wrk_ctx); thread++)
+    {
+      wrk = tcp_get_worker (thread);
+      clib_memset (&wrk->stats, 0, sizeof (wrk->stats));
+    }
+
+  return 0;
+}
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (clear_tcp_stats_command, static) =
+{
+  .path = "clear tcp stats",
+  .short_help = "clear tcp stats",
+  .function = clear_tcp_stats_fn,
+};
+/* *INDENT-ON* */
+
 /*
  * fd.io coding-style-patch-verification: ON
  *